HESITATION/LOSS OF RPM/LOW IDLE RPM/DRIVEABILITY CONCERNS
Publication Date: January 25, 2010
Some 2007-2009 Mustang GT500 vehicles equipped with a 5.4L engine may exhibit hesitation, loss of RPM and low idle RPM driveability concerns. Some 2007 Mustang GT500 vehicles equipped with a 5.4L engine may exhibit cold start concerns at high altitude with ambient temperatures of 20 to 35 °F (-7 to 2 °C).
Reprogram the powertrain control module (PCM) to the latest calibration using IDS release 64.10 and higher or 65.01 and higher. This new calibration is not included in the VCM 2010.1 DVD. Calibration files may also be obtained at www.motorcraft.com.
Eligible Under Provisions Of New Vehicle Limited Warranty Coverage IMPORTANT: Warranty coverage limits/policies are not altered by a TSB. Warranty coverage limits are determined by the identified causal part.
2007-2009 Mustang 5.4L DOHC: Reprogram The PCM (Do Not Use With Any Other Labor Operations)